64109440

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1047

約数の個数: 64

約数和(自身を含む): 154836000

約数和(自身を除く): 90726560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 640, 872, 919, 1090, 1744, 1838, 2180, 3488, 3676, 4360, 4595, 6976, 7352, 8720, 9190, 13952, 14704, 17440, 18380, 29408, 34880, 36760, 58816, 69760, 73520, 100171, 117632, 147040, 200342, 294080, 400684, 500855, 588160, 801368, 1001710, 1602736, 2003420, 3205472, 4006840, 6410944, 8013680, 12821888, 16027360, 32054720, 64109440]

約数ペア:

[(1, 64109440), (2, 32054720), (4, 16027360), (5, 12821888), (8, 8013680), (10, 6410944), (16, 4006840), (20, 3205472), (32, 2003420), (40, 1602736), (64, 1001710), (80, 801368), (109, 588160), (128, 500855), (160, 400684), (218, 294080), (320, 200342), (436, 147040), (545, 117632), (640, 100171), (872, 73520), (919, 69760), (1090, 58816), (1744, 36760), (1838, 34880), (2180, 29408), (3488, 18380), (3676, 17440), (4360, 14704), (4595, 13952), (6976, 9190), (7352, 8720)]